Rotation: how necessary is it for vegetables?

The third video of those we made on 14th September 2016, see links below for Dec. 2017 updates. Here we see the growth of cabbage, calabrese, winter squash and climbing beans, after preceding crops of the same. I draw no conclusions but there are interesting implications. Filmed and edited by Edward Dowding. The first video is "Comparing growth and harvests in adjacent strips, dug and no dig", the second is "Compost comparison".
2017 update https://www.youtube.com/watch?v=XA4VdUaJR7w
More about the trial results, updated December 2017 at https://www.charlesdowding.co.uk/no-dig-growing/three-strip-trial/